I first heard about the DOE report on 100 energy saving technologies supported by the Building Technologies Program from enterprisesmartgrid.org. The report mainly focuses on energy saving technologies for commercial applications, but many of the products can also be used in a residential setting. From a section of the report:
This report identifies and characterizes commercially available products and emerging (near-commercial) technologies that benefited from the support of the Building Technologies Program (BTP) within the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy. The investigation specifically focused on technology-oriented research and development (R&D) projects sponsored by BTP’s Emerging Technologies subprogram from 2005-2009.
Some of the products/technologies on the list that are applicable to residential energy applications are below:
- EchoTM: A Hybrid Solar Electric/Thermal System
- GE GeoSpring Hybrid Water Heater
- VertexTM Residential Gas Condensing Water Heater
- Comboflair®: An Integrated HVAC and Water Heating System
- SageGlass® Electrochromic Windows